The formation of a rigid matrix is given by analysing crevices of a masonry structure.It is simulated that the walls collapse for increasing cracks in walls under action of earthquake by FEM,and the characteristic of vibration and collapse in the structure is concluded.The method given in the paper can also be used in other structures made of brittle materials.
[4] Gambarota L,Lagomarsino S.Damage Models for the Seismic Responseof Brick Masonry Shear Walls.Part I:the Mortar Joint Model and itsApplications[J].Earthquake Engineering and Structural Dynamics,1997,26:423-439;